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18030411198 = 2321243380567
BaseRepresentation
bin10000110010101100…
…100011110110111110
31201112120101210100100
4100302230203312332
5243411241124243
612141050141530
71205544652332
oct206254436676
951476353310
1018030411198
117712773888
1235b24218a6
13191461a787
14c308a57c2
15707db40d3
hex432b23dbe

18030411198 has 24 divisors (see below), whose sum is σ = 39069517968. Its totient is φ = 6009579072.

The previous prime is 18030411197. The next prime is 18030411221. The reversal of 18030411198 is 89111403081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030411197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183511 + ... + 264077.

It is an arithmetic number, because the mean of its divisors is an integer number (1627896582).

Almost surely, 218030411198 is an apocalyptic number.

18030411198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18030411198 is an abundant number, since it is smaller than the sum of its proper divisors (21039106770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18030411198 is a wasteful number, since it uses less digits than its factorization.

18030411198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93008 (or 93005 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The spelling of 18030411198 in words is "eighteen billion, thirty million, four hundred eleven thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 9 18 12433 24866 37299 74598 80567 111897 161134 223794 241701 483402 725103 1450206 1001689511 2003379022 3005068533 6010137066 9015205599 18030411198